Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 18,378,784	$ 21,677,186
Accounts receivable, net	8,045,585	607,522
Costs and estimated earnings in excess of billings on contracts in progress	1,743,666	2,596,518
Inventories, net	2,743,398	3,286,539
Other current assets	481,976	235,537
Total Current Assets	31,393,409	28,403,302
Property, plant and equipment, net	14,296,475	14,344,924
Construction in progress	115,030	94,058
Deferred income taxes – non-current	2,149,160	2,440,334
Other assets	231,541	68,450
Intangible assets, net	206,255	253,624
Total Assets	48,391,870	45,604,692
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	1,139,903	743,132
Accrued expenses	1,847,446	1,942,818
Current maturities of long-term debt	300,000	300,000
Billings in excess of costs and estimated earnings on contracts in progress	4,652,821	5,262,339
Deferred revenue	2,006,441	77,633
Total Current Liabilities	9,946,611	8,325,922
Long-term debt, net of current portion	2,890,508	2,965,508
Total Liabilities	12,837,119	11,291,430
Commitments and Contingencies
Stockholders’ Equity:
Common stock-$0.01 par value-20,000,000 shares authorized; issued and outstanding 6,363,690 at March 31, 2017 and 6,346,590 at December 31, 2016	63,637	63,466
Additional paid-in-capital	24,348,758	24,131,474
Retained earnings	11,142,356	10,118,322
Total Stockholders’ Equity	35,554,751	34,313,262
Total Liabilities and Stockholders’ Equity	$ 48,391,870	$ 45,604,692