Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 13,134,952	$ 14,210,909
Accounts receivable, net	8,978,829	2,058,617
Contract assets	3,719,361	8,397,024
Inventories, net	2,729,744	2,965,623
Other current assets	220,834	167,425
Total Current Assets	28,783,720	27,799,598
Property, plant and equipment, net	29,503,526	28,839,457
Deferred income taxes	1,611,340	1,609,186
Deposits	204,815	63,370
Other assets	1,853	4,477
Intangible assets, net	535,594	662,162
Total Assets	60,640,848	58,978,250
Current Liabilities:
Accounts payable	1,103,974	1,174,968
Accrued expenses	2,562,509	2,738,373
Current maturities of long-term debt	650,736	647,324
Current portion acquisition related contingent payments	100,000	100,000
Contract liabilities	1,515,009	466,313
Deferred revenue	533,442	291,953
Total Current Liabilities	6,465,670	5,418,931
Long-term acquisition related contingent payments	200,000	200,000
Long-term debt, net of current portion	12,540,339	12,705,683
Total Long-Term Liabilities	12,740,339	12,905,683
Total Liabilities	19,206,009	18,324,614
Commitments and Contingencies
Stockholders’ Equity:
Common stock-$0.01 par value-20,000,000 shares authorized; issued and outstanding 6,469,664 at March 31, 2018 and 6,458,714 at December 31, 2017	64,697	64,587
Additional paid-in-capital	25,432,005	25,209,316
Retained earnings	15,938,137	15,379,733
Total Stockholders’ Equity	41,434,839	40,653,636
Total Liabilities and Stockholders’ Equity	$ 60,640,848	$ 58,978,250