Accounts payable and accrued liabilities as of June 30, 2015 and 2014, are as follows:
| 2015 | 2014 | |
| Payable to vendors and contractors | $ 1,915,422 | $ 563,431 |
| Accrued sick leave liability | 292,360 | 346,431 |
| Accrued salaries and other liabilities | 2,137,802 | 2,492,380 |
| $ 4,345,584 | $ 3,402,242 |
Unearned revenue consists of the following as of June 30, 2015 and 2014:
2015 2014
Unearned summer school tuition and fees $ 205,411 $ 261,467
Unearned grants and contracts 669,138 1,037,861
$ 874,549 $ 1,299,328
Long-term liabilities as of June 30, 2015, are summarized as follows:
| Beginning Balance | Additions | Reductions | Ending Balance | Current Portion | Noncurrent portion | |
|---|---|---|---|---|---|---|
| General receipts bonds | $ 3,405,000 | $ - | $ 210,000 | $ 3,195,000 | $ 215,000 | $ 2,980,000 |
| Note payable - City of Frankfort | 250,000 | - | 50,000 | 200,000 | 50,000 | 150,000 |
| Capital lease - police vehicles | 101,204 | - | 33,735 | 67,469 | 33,735 | 33,734 |
| Capital lease obligations-energy savings | 3,695,700 | - | 463,162 | 3,232,538 | 483,243 | 2,749,295 |
| Bond discount | (49,798) | - | - | (49,798) | (3,064) | (46,734) |
| Total bonds payable and capital lease obligations | 7,402,106 | - | 756,897 | 6,645,209 | 778,914 | 5,866,295 |
| Federal grants refundable | 534,914 | - | - | 534,914 | - | 534,914 |
| Total long-term liabilities | $ 7,937,020 | $ - | $ 756,897 | $ 7,180,123 | $ 778,914 | $ 6,401,209 |