The effect of the Restatement described above on the accompanying consolidated statement of operations for the three and six months ended June 30, 2020 is as follows: (Details) - USD ($)	3 Months Ended						6 Months Ended		12 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue	$ 22,301,190				$ 19,740,767		$ 53,119,936	$ 36,599,154
Cost of sales	18,704,588				17,924,428		44,603,246	34,629,831
Gross profit	3,596,602				1,816,339		8,516,690	1,969,323
Selling, general and administrative expenses	2,677,688				2,815,252		6,068,494	5,908,342
Loss from operations	918,914				(998,913)		2,448,196	(3,939,019)
Other expense:
Interest expense	(293,685)				(360,126)		(588,174)	(776,797)
Loss before provision for income taxes	625,229				(1,359,039)		1,860,022	(4,715,816)
Provision for income taxes	2,078				1,522		4,328	2,100
Net income (loss)	$ 623,151	$ 1,232,543	$ 223,398	$ 839,765	$ (1,360,561)	$ (3,357,355)	$ 1,855,694	$ (4,717,916)
Loss per common share - basic	$ 0.05				$ (0.11)		$ 0.15	$ (0.40)
Loss per common share - diluted	$ 0.05				$ (0.11)		$ 0.15	$ (0.40)
Basic	12,188,197				11,855,404		12,086,299	11,846,260
Diluted	12,255,950				11,855,404		12,154,052	11,846,260
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue					$ 19,740,767			$ 36,599,154
Cost of sales					17,160,698			33,321,265
Gross profit					2,580,069			3,277,889
Selling, general and administrative expenses					2,815,252			5,908,342
Loss from operations					(235,183)			(2,630,453)
Other expense:
Interest expense					(360,126)			(776,797)
Loss before provision for income taxes					(595,309)			(3,407,250)
Provision for income taxes					1,522			2,100
Net income (loss)			1,273,703	815,209	$ (596,831)	(2,812,519)		$ (3,409,350)
Loss per common share - basic					$ (0.05)			$ (0.29)
Loss per common share - diluted					$ (0.05)			$ (0.29)
Basic					11,855,404			11,846,260
Diluted					11,855,404			11,846,260
Inventory Costing Errors [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue
Cost of sales					510,244			826,243
Gross profit					(510,244)			(826,243)
Loss from operations					(510,244)			(826,243)
Other expense:
Interest expense
Loss before provision for income taxes					(510,244)			(826,243)
Provision for income taxes
Net income (loss)			(1,071,395)	(112,446)	$ (510,244)	(315,999)		$ (826,243)	$ (2,010,084)
Loss per common share - basic					$ (0.04)			$ (0.07)
Loss per common share - diluted					$ (0.04)			$ (0.07)
Basic
Diluted
Loss Contract Reserve [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue
Cost of sales					190,035			199,406
Gross profit					(190,035)			(199,406)
Loss from operations					(190,035)			(199,406)
Other expense:
Interest expense
Loss before provision for income taxes					(190,035)			(199,406)
Provision for income taxes
Net income (loss)			$ 99,921	$ 206,159	$ (190,035)	$ (9,371)		$ (199,406)
Loss per common share - basic					$ (0.02)			$ (0.02)
Loss per common share - diluted					$ (0.02)			$ (0.02)
Basic
Diluted
Additional Inventory Reserve [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue
Cost of sales					63,451			282,917
Gross profit					(63,451)			(282,917)
Loss from operations					(63,451)			(282,917)
Other expense:
Interest expense
Loss before provision for income taxes					(63,451)			(282,917)
Provision for income taxes
Net income (loss)					$ (63,451)			$ (282,917)
Loss per common share - basic					$ (0.00)			$ (0.02)
Loss per common share - diluted					$ (0.00)			$ (0.02)
Basic
Diluted