Consolidated Balance Sheet (Current Period Unaudited) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
CURRENT ASSETS:
Cash and cash equivalents	$ 3,151,409	$ 1,494,415
Accounts receivable less allowance for doubtful accounts	22,115,955	18,387,744
Contract assets	2,040,011	2,111,057
Inventories-less allowance for obsolete inventory	20,819,135	16,585,437
Investments	1,084,175	1,518,244
Refundable tax asset	604,815	1,316,595
Prepaid expenses and other current assets	1,782,820	1,112,068
Total Current Assets	51,598,320	42,525,560
Property, plant and equipment, net	14,966,382	15,609,202
Operating right of use asset, net	8,731,603	8,998,776
OTHER ASSETS:
Goodwill	16,157,277	14,404,618
Intangibles, net of accumulated amortization	10,146,440	9,336,564
Other non-current assets	113,511	88,591
Total Non-Current Other Assets	26,417,228	23,829,773
Total Assets	101,713,533	90,963,311
CURRENT LIABILITIES:
Notes payable – current	2,968,833	2,946,885
Bank debt – current	777,778	1,444,444
Leases payable – current	1,687,313	1,241,681
Accounts payable	14,640,013	11,460,364
Unearned revenue	4,100,220	2,881,535
Contingent liability – short term	750,000	750,000
Accrued expenses	3,694,103	3,136,690
Total Current Liabilities	28,618,260	23,861,599
LONG-TERM LIABILITIES:
Bank debt	21,661,715	16,175,436
Leases payable	7,280,843	7,985,628
Contingent liability – long-term	0	750,000
Deferred income taxes	3,275,370	3,275,370
Total Long-Term Liabilities	34,440,816	32,461,811
STOCKHOLDERS' EQUITY
Contributed capital	1,741,901	1,741,901
Treasury shares	(2,121,822)	(1,981,113)
Retained earnings	30,256,907	28,019,768
Total Stockholders' Equity	38,654,457	34,639,901
Total Liabilities and Stockholders' Equity	101,713,533	90,963,311
Common Class A [Member]
STOCKHOLDERS' EQUITY
Common stock	7,311,949	5,393,823
Common Class B [Member]
STOCKHOLDERS' EQUITY
Common stock	1,465,522	1,465,522
Notes Payable Excluding Paycheck Protection Program Cares Act [Member]
LONG-TERM LIABILITIES:
Notes Payable, Noncurrent	$ 2,222,888	$ 4,275,377