Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 6,739,065	$ 11,439,361
Accounts receivable, net	3,072,178	4,065,220
Contract assets	2,587,783	1,357,797
Inventories	1,769,215	1,861,873
Other current assets	311,514	723,204
Total Current Assets	14,479,755	19,447,455
Property, plant and equipment, net	31,786,067	30,402,558
Deferred income taxes	2,803,414	2,104,414
Other assets	34,948	64,583
Intangible assets, net	429,570	495,552
Total Assets	49,533,754	52,514,562
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	1,031,075	713,194
Accrued expenses	1,706,514	1,503,309
Current maturities of long-term debt	670,026	857,590
Contract liabilities	143,333	536,524
Deferred revenue	1,274,025	459,899
Total Current Liabilities	4,824,973	4,070,516
Long-term debt, net of current portion	11,547,683	12,051,720
Total Long-Term Liabilities	11,547,683	12,051,720
Total Liabilities	16,372,656	16,122,236
Commitments and contingencies
Stockholders’ Equity:
Common stock - $0.01 par value – 20,000,000 shares authorized; issued and outstanding 6,564,566 at September 30, 2019 and 6,535,888 at December 31, 2018	65,645	65,358
Additional paid-in capital	26,624,426	26,148,256
Retained earnings	6,471,027	10,178,712
Total Stockholders’ Equity	33,161,098	36,392,326
Total Liabilities and Stockholders’ Equity	$ 49,533,754	$ 52,514,562