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Revenue Recognition - Schedule of Disaggregation of Revenue Listed by Sales Category and State (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 22,861,201	$ 13,659,395	$ 59,818,168	$ 40,448,530
Gross Profit	$ 5,186,454	$ 2,477,169	$ 10,770,251	$ 7,169,654
Margin	22.70%	18.10%	18.00%	17.70%
Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 6,208,274		$ 8,567,074
Gross Profit	3,167,602		4,263,089
Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	22,122,032	$ 13,222,421	57,729,608	$ 38,614,292
Gross Profit	$ 4,972,473	$ 2,320,769	$ 10,124,995	$ 6,532,975
Margin	22.50%	17.60%	17.50%	16.90%
South Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 739,169	$ 436,974	$ 2,088,560	$ 1,834,238
Gross Profit	$ 213,981	$ 156,400	$ 645,256	$ 636,679
Margin	28.90%	35.80%	30.90%	34.70%
South Carolina [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues
Gross Profit
Margin	0.00%	0.00%	0.00%	0.00%
Jewelry [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 4,036,825	$ 3,694,204	$ 12,432,060	$ 13,519,276
Gross Profit	$ 1,149,134	$ 1,223,144	$ 3,715,091	$ 3,840,235
Margin	28.50%	33.10%	29.90%	28.40%
Jewelry [Member] | Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 3,506,998	$ 3,404,889	$ 11,264,742	$ 12,279,064
Gross Profit	$ 957,867	$ 1,083,550	$ 3,224,943	$ 3,353,686
Margin	27.30%	31.80%	28.60%	27.30%
Jewelry [Member] | South Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 529,825	$ 289,315	$ 1,167,318	$ 1,240,212
Gross Profit	$ 191,267	$ 139,594	$ 490,148	$ 486,549
Margin	36.10%	48.20%	42.00%	39.20%
Bullion/Rare Coin [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 9,621,146	$ 8,120,071	$ 30,543,290	$ 21,828,412
Gross Profit	$ 442,573	$ 727,555	$ 1,468,358	$ 2,128,921
Margin	4.60%	9.00%	4.80%	9.80%
Bullion/Rare Coin [Member] | Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 9,473,024	$ 8,001,990	$ 30,026,499	$ 21,406,758
Gross Profit	$ 433,389	$ 711,529	$ 1,416,360	$ 2,060,247
Margin	4.60%	8.90%	4.70%	9.60%
Bullion/Rare Coin [Member] | South Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 148,122	$ 118,081	$ 516,791	$ 421,654
Gross Profit	$ 9,184	$ 16,026	$ 51,998	$ 68,674
Margin	6.20%	13.60%	10.10%	16.30%
Scrap [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 2,547,912	$ 1,317,133	$ 5,514,091	$ 3,782,718
Gross Profit	$ 359,255	$ 226,090	$ 801,216	$ 669,461
Margin	14.10%	17.20%	14.50%	17.70%
Scrap [Member] | Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 2,547,912	$ 1,317,133	$ 5,514,091	$ 3,782,718
Gross Profit	$ 359,255	$ 226,090	$ 801,216	$ 669,461
Margin	14.10%	17.20%	14.50%	17.70%
Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 447,044	$ 527,987	$ 2,761,652	$ 1,318,124
Gross Profit	$ 67,890	$ 300,380	$ 522,497	$ 531,037
Margin	15.20%	56.90%	18.90%	40.30%
Other [Member] | Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 385,823	$ 498,409	$ 2,357,201	$ 1,145,752
Gross Profit	$ 54,360	$ 299,600	$ 419,387	$ 449,581
Margin	14.10%	60.10%	17.80%	39.20%
Other [Member] | South Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 61,222	$ 29,578	$ 404,451	$ 172,372
Gross Profit	$ 13,530	$ 780	$ 103,110	$ 81,456
Margin	22.10%	2.60%	25.50%	47.30%
Subtotal [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 16,652,927	$ 13,659,395	$ 51,251,093	$ 40,448,530
Gross Profit	$ 2,018,852	$ 2,477,169	$ 6,507,162	$ 7,169,654
Margin	12.10%	18.10%	12.70%	17.70%
Subtotal [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 6,208,274		$ 8,567,075
Gross Profit	$ 3,167,602		$ 4,263,089
Margin	51.00%	0.00%	49.80%	0.00%
Subtotal [Member] | Texas [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 15,913,757	$ 13,222,421	$ 49,162,533	$ 38,614,292
Gross Profit	$ 1,804,871	$ 2,320,769	$ 5,861,906	$ 6,532,975
Margin	11.30%	17.60%	11.90%	16.90%
Subtotal [Member] | Texas [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 6,208,275		$ 8,567,075
Gross Profit	$ 3,167,602		$ 4,263,089
Margin	51.00%	0.00%	49.80%	0.00%
Subtotal [Member] | South Carolina [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 739,169	$ 436,974	$ 2,088,560	$ 1,834,238
Gross Profit	$ 213,981	$ 156,400	$ 645,256	$ 636,679
Margin	28.90%	35.80%	30.90%	34.70%
Subtotal [Member] | South Carolina [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues
Gross Profit
Margin	0.00%	0.00%	0.00%	0.00%
Recycle [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 5,133,181		$ 6,721,265
Gross Profit	$ 2,408,416		$ 3,156,235
Margin	46.90%	0.00%	47.00%	0.00%
Recycle [Member] | Texas [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 5,133,181		$ 6,721,265
Gross Profit	$ 2,408,416		$ 3,156,235
Margin	46.90%	0.00%	47.00%	0.00%
Reuse [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 1,075,093		$ 1,845,810
Gross Profit	$ 759,186		$ 1,106,854
Margin	70.60%	0.00%	60.00%	0.00%
Reuse [Member] | Texas [Member] | Echo Environmental, LLC [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Revenues	$ 1,075,094		$ 1,845,810
Gross Profit	$ 759,186		$ 1,106,854
Margin	70.60%	0.00%	60.00%	0.00%

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