Consolidated Balance Sheet (Current Period Unaudited) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 3,437,566	$ 6,194,276
Accounts receivable less allowance for doubtful accounts	17,769,648	12,021,692
Contract assets	2,112,091	3,735,557
Inventories-less allowance for obsolete inventory	14,581,588	11,030,960
Investments	1,479,259	1,534,400
Prepaid expenses and other current assets	1,153,091	657,496
Total Current Assets	40,533,243	35,174,381
Property, plant and equipment, net	15,361,850	11,290,783
Operating right of use asset, net	8,284,495	8,856,820
OTHER ASSETS:
Goodwill	14,183,954	11,505,852
Intangibles, net of accumulated amortization	9,294,360	7,558,309
Other non-current assets	97,617	106,638
Total Non-Current Other Assets	23,575,931	19,170,799
Total Assets	87,755,519	74,492,783
LIABILITIES AND STOCKHOLDERS’ EQUITY CURRENT LIABILITIES:
Notes payable – current	2,925,607	2,782,479
Bank debt – current	1,333,333	1,333,333
Leases payable – current	1,149,104	1,136,300
Accounts payable	12,009,800	9,230,032
Unearned revenue	1,496,361	820,002
Contingent liability - current	750,000	0
Accrued expenses	2,133,889	2,242,924
Total Current Liabilities	21,798,094	17,545,070
LONG-TERM LIABILITIES:
Notes payable – long-term	5,754,221	5,455,717
Bank debt – long-term	16,305,142	12,174,428
Leases payable – long-term	7,367,122	7,901,357
Deferred income taxes	2,429,828	2,429,828
Contingent liability – long-term	750,000	0
Total Long-Term Liabilities	32,606,313	29,415,167
STOCKHOLDERS' EQUITY
Contributed capital	1,741,901	1,741,901
Treasury shares	(1,979,085)	(1,938,052)
Retained earnings	26,757,193	22,366,470
Total Stockholders' Equity	33,351,112	27,532,546
Total Liabilities and Stockholders' Equity	87,755,519	74,492,783
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock	5,365,581	3,896,705
Common Class B [Member]
STOCKHOLDERS' EQUITY
Common stock	1,465,522	1,465,522
Paycheck Protection Program CARES Act [Member]
LONG-TERM LIABILITIES:
Notes payable – long-term	$ 0	$ 1,453,837