Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Feb. 28, 2019	5,957,827
Balance at Feb. 28, 2019	$ 5,958	$ 6,650,864	$ 13,733,010	$ 20,389,832
Consolidated net (loss) income			1,629,697	1,629,697
Issuance of common stock, vesting of restricted stock units and other (in shares)	33,335
Issuance of common stock, vesting of restricted stock units and other	$ 33	(33)
Equity compensation, restricted stock units		386,670		386,670
Cash dividends declared			(1,435,498)	(1,435,498)
Consolidated net (loss) income			1,629,697	1,629,697
Balance (in shares) at Aug. 31, 2019	5,991,162
Balance at Aug. 31, 2019	$ 5,991	7,037,501	13,927,209	20,970,701
Balance (in shares) at May. 31, 2019	5,962,327
Balance at May. 31, 2019	$ 5,962	6,882,114	13,728,480	20,616,556
Consolidated net (loss) income			918,088	918,088
Issuance of common stock, vesting of restricted stock units and other (in shares)	28,835
Issuance of common stock, vesting of restricted stock units and other	$ 29	(29)
Equity compensation, restricted stock units		155,416		155,416
Cash dividends declared			(719,359)	(719,359)
Consolidated net (loss) income			918,088	918,088
Balance (in shares) at Aug. 31, 2019	5,991,162
Balance at Aug. 31, 2019	$ 5,991	7,037,501	13,927,209	20,970,701
Balance (in shares) at Feb. 29, 2020	6,019,532
Balance at Feb. 29, 2020	$ 6,020	7,459,931	11,889,560	19,355,511
Consolidated net (loss) income			(3,591,265)	(3,591,265)
Issuance of common stock, vesting of restricted stock units and other (in shares)	47,929
Issuance of common stock, vesting of restricted stock units and other	$ 48	(48)
Equity compensation, restricted stock units		287,437		287,437
Cash dividends declared
Consolidated net (loss) income			(3,591,265)	(3,591,265)
Balance (in shares) at Aug. 31, 2020	6,067,461
Balance at Aug. 31, 2020	$ 6,068	7,747,320	8,298,295	16,051,683
Balance (in shares) at May. 31, 2020	6,060,663
Balance at May. 31, 2020	$ 6,061	7,603,608	8,222,163	15,831,832
Consolidated net (loss) income			76,132	76,132
Issuance of common stock, vesting of restricted stock units and other (in shares)	6,798
Issuance of common stock, vesting of restricted stock units and other	$ 7	(7)
Equity compensation, restricted stock units		143,719		143,719
Cash dividends declared
Consolidated net (loss) income			76,132	76,132
Balance (in shares) at Aug. 31, 2020	6,067,461
Balance at Aug. 31, 2020	$ 6,068	$ 7,747,320	$ 8,298,295	$ 16,051,683