Pay vs Performance Disclosure - USD ($)

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Pay vs Performance Disclosure [Table]

Pay vs Performance [Table Text Block]

Chief Executive Officer (PEO) Pay Versus Performance Table

Year	Summary Compensation Table Total for Michael R. Matacunas		Summary Compensation Table Total for Kori G. Belzer		Compensation Actually Paid (3) to Michael R. Matacunas		Compensation Actually Paid (3) to Kori G. Belzer		Average Summary Compensation Table Total for Non-PEO NEOs		Average Compensation Actually Paid (3) to Non-PEO NEOs		Total Shareholder Return		Company’s Net Income
2022	$	612,613		N/A	$	749,718		N/A	$	415,344	$	384,882		113.04	$	2,126,000
2021	$	304,086 (1)	$	60,112 (2)	$	722,932 (1)		50,878 (2)	$	348,448	$	324,647		106.96	$	2,000,000

(1) Ms. Belzer was acting Chief Executive Officer of SGRP through February, 2021.

(2) Mr. Matacunas became Chief Executive Office of SGRP on February 22, 2021.

(3) Amount includes non-cash compensation respecting certain stock-based awards adjusted for changes in equity award values.

PEO Total Compensation Amount

$ 612,613

$ 304,086

PEO Actually Paid Compensation Amount

749,718

722,932

Non-PEO NEO Average Total Compensation Amount

415,344

348,448

Non-PEO NEO Average Compensation Actually Paid Amount

384,882

324,647

Total Shareholder Return Amount

113.04

106.96

Net Income (Loss)

$ 2,126,000

2,000,000

Acting PEO [Member]

Pay vs Performance Disclosure [Table]

PEO Total Compensation Amount

60,112

PEO Actually Paid Compensation Amount

$ 50,878